Note 6 - Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total debt	$ 524,727	$ 527,883
Less: Current portion	(6,038)	(5,959)
Long-term debt	518,689	521,924
First Lien Credit Facilities [Member] \| Term Loan [Member]
Total debt	522,989	526,461
Equipment Long-term Note Payable and Finance Leases [Member] \| Notes Payable, Other Payables [Member]
Total debt	$ 1,737	$ 1,422

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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